DRV8813_15 Datasheet, PDF (13/27 Pages) Texas Instruments – DRV8813 Dual-Bridge Motor Controller IC

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8 Application and Implementation
DRV8813
SLVSA72E – APRIL 2010 – REVISED OCTOBER 2015
NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
8.1 Application Information
The DRV8813 can be used to control a bipolar stepper motor. The PHASE/ENBL interface controls the outputs
and current control can be implemented with the internal current regulation circuitry. Detailed fault reporting is
provided with the internal protection circuits and nFAULT pin.
8.2 Typical Application
0.01 uF
DRV8813
CP1
GND
CP2
BI1
VCP
BI0
0.01 uF
1 MŸ 0.1 uF
VMA
AI1
VM
+
100 uF
Stepper Motor
+
-
200 mŸ
200 mŸ
0.01 uF
V3P3OUT
10 kŸ
30 kŸ
AOUT1
ISENA
AOUT2
BOUT2
ISENB
BOUT1
VMB
AVREF
BVREF
GND
AI0
BPHASE
BENBL
AENBL
APHASE
DECAY
nFAULT
nSLEEP
nRESET
V3P3OUT
V3P3OUT
10 kŸ
V3P3OUT
0.47 uF
Figure 7. Typical Application Schematic
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